"Springs and Rubber Bands" PPT

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Hunan Education Edition Fourth Grade Science Volume 2, Spring and Rubber Band PPT Download

Part 1: Guess:

Is there any difference in the result after pulling or squeezing the spring, rubber band, or plasticine?

Let’s do it next:

Think about it:

What other objects in our lives have similar properties to rubber bands or plasticine?

Spring and rubber band: they deform when subjected to force and can return to their original shape after the external force is removed.

Plasticine: It deforms when subjected to force and cannot automatically return to its original shape after the external force is removed.

Unit of elastic force: Newton (N)

Spring and rubber band PPT, part 2 content: precautions

Could you please tell me what should I pay attention to when using a spring dynamometer?

1. "Three clear sights": See clearly the range and graduation value of the dynamometer and whether the pointer is aligned with the zero mark (if not, it should be adjusted to zero).

2. Pull gently with your hands a few times before measuring: to prevent jamming

3. When measuring, the dial should be pointed vertically downward so that the axis of the spring is in a straight line with the direction of the measured force to prevent the spring from leaning on the dial.

4. When reading, the line of sight should be perpendicular to the dial and on the same straight line as the pointer.

Spring and rubber band PPT, part three: summary:

1. Main structure: lifting ring, spring, dial, pointer, scale hook

2. Correct usage:

Understand the measuring range (range) of the spring dynamometer and do not measure forces beyond its range

Clarify the graduation value: Understand the scale of the spring dynamometer. How many newtons does the first large square represent?

Zero calibration: Before measuring force, the pointer should be aligned with the zero scale line. If there is a deviation, adjust it until the two are aligned.

When measuring force, the axis direction of the spring in the dynamometer should be consistent with the direction of the force being measured, and the spring should not be close to the dial.

Keywords: Hunan Education Edition fourth grade science PPT courseware for the second volume free download, spring and rubber band PPT courseware, .PPT format;

For more information about the "Springs and Rubber Bands" PPT courseware, please click the Spring and Rubber Bands ppt tab.

"Springs and Rubber Bands" PPT courseware:

Hunan Education Edition fourth grade science volume 2, springs and rubber bands PPT courseware, the first part of the content: Think about it Think about it, what methods can we use to study springs? When I press the spring, I observe that I feel it. When I pull the spring, I observe that I feel it.

"Spring and Rubber Band" PPT:

Hunan Education Edition 4th Grade Science Volume 2, Spring and Rubber Band PPT, Part One: The Force of Spring and Rubber Band. Play with springs and rubber bands and describe their changes. The reaction force of a rubber band against an opponent, like a spring and a rubber band, tries to return to its original shape after deformation..

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Update Time: 2024-06-30

This template belongs to science courseware Hunan Education Edition Fourth Grade Science Volume 2 industry PPT template

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